Picture signal coding method and picture signal coding apparatus, and picture signal decoding method and picture signal decoding apparatus

摘要

PCT No. PCT/JP94/00499 Sec. 371 Date Feb. 8, 1995 Sec. 102(e) Date Feb. 8, 1995 PCT Filed Mar. 28, 1994 PCT Pub. No. WO94/23535 PCT Pub. Date Oct. 13, 1994Apparatus and method for coding a moving picture signal and decoding a coded moving picture signal. The input picture signal of higher resolution is down-sampled at respective ratios in the longitudinal and lateral directions to generate a picture signal of lower resolution having a different aspect ratio. The coded picture signal of lower resolution is up-sampled at respective ratios in the longitudinal and lateral directions to generate a picture signal of higher resolution having a different aspect ratio.